collaborators

14 papers

cs.CV2025

MMR1: Enhancing Multimodal Reasoning with Variance-Aware Sampling and Open Resources

Sicong Leng, Jing Wang, Jiaxi Li +12

Large multimodal reasoning models have achieved rapid progress, but their advancement is constrained by two major limitations: the absence of open, large-scale, high-quality long c…

cs.CL2025

Finding the Sweet Spot: Preference Data Construction for Scaling Preference Optimization

Yao Xiao, Hai Ye, Linyao Chen +4

Iterative data generation and model retraining are widely used to align large language models (LLMs). It typically involves a policy model to generate on-policy responses and a rew…

cs.CL2025

Analyzing LLMs' Knowledge Boundary Cognition Across Languages Through the Lens of Internal Representations

Chenghao Xiao, Hou Pong Chan, Hao Zhang +4

While understanding the knowledge boundaries of LLMs is crucial to prevent hallucination, research on the knowledge boundaries of LLMs has predominantly focused on English. In this…

cs.CL2025

Pruning General Large Language Models into Customized Expert Models

Yirao Zhao, Guizhen Chen, Kenji Kawaguchi +2

Large language models (LLMs) have revolutionized natural language processing, yet their substantial model sizes often require substantial computational resources. To preserve compu…

cs.CV2025

VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video Understanding

Boqiang Zhang, Kehan Li, Zesen Cheng +12

In this paper, we propose VideoLLaMA3, a more advanced multimodal foundation model for image and video understanding. The core design philosophy of VideoLLaMA3 is vision-centric. T…

cs.CL2025

FINEREASON: Evaluating and Improving LLMs' Deliberate Reasoning through Reflective Puzzle Solving

Guizhen Chen, Weiwen Xu, Hao Zhang +6

Many challenging reasoning tasks require not just rapid, intuitive responses, but a more deliberate, multi-step approach. Recent progress in large language models (LLMs) highlights…